Device suitable for radioactive waste treatment

Abstract

The embodiment of the invention relates to the field of temperature measurement, in particular to a device suitable for radioactive waste treatment, which comprises an accommodating part, an induction coil, a cover part and a temperature measuring device. The containing piece is used for containing radioactive waste and is composed of a plurality of water cooling pipes. The induction coil is arranged to be capable of generating induction current on the radioactive waste in the containing piece so as to heat the radioactive waste to enable the radioactive waste to become molten mass. The cover piece is arranged to be capable of sealing the containing piece. The temperature measuring device is used for measuring the temperature of the molten mass in the accommodating part; when the temperature of the molten mass is measured, the temperature measuring device is obliquely arranged in the direction away from the inner wall of the containing piece. According to the device suitable for radioactive waste treatment, the temperature measuring device is obliquely arranged in the direction away from the inner wall of the containing part when the temperature of the molten mass is measured, so that the temperature measuring device can be prevented from being affected by the inner wall of the containing part, and the accuracy of the temperature measuring result of the temperature measuring device can be improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of temperature measurement, and in particular to a device suitable for radioactive waste treatment. Background Art

[0002] The statements herein merely provide background information related to the present application and do not necessarily constitute prior art.

[0003] The cold crucible is the core equipment of the high-level radioactive liquid waste vitrification facility. It is used to receive the radioactive waste calcination products and glass beads, and heat the glass beads and the radioactive waste calcination products to a molten state through the induced current generated by the high-frequency coil in the cold crucible, and finally obtain a vitrified body of the radioactive waste liquid.

[0004] In order to ensure the solidification effect of radioactive waste liquid, after heating the glass beads and the radioactive waste liquid calcination product to a molten state, it is necessary to measure the temperature of the melt in the cold crucible. However, in the process of measuring the temperature of the melt in the cold crucible, there is a problem of inaccurate measurement results. Summary of the invention

[0005] A brief overview of the present application is provided below in order to provide a basic understanding of certain aspects of the present application. It should be understood that this overview is not an exhaustive overview of the present application. It is not intended to identify the key or important parts of the present application, nor is it intended to limit the scope of the present application. Its purpose is merely to present certain concepts in a simplified form as a prelude to a more detailed description discussed later.

[0006] In view of the above problems, an embodiment of the present application provides a device suitable for radioactive waste treatment, which includes a container, an induction coil, a cover, and a temperature measuring device. The container is used to contain radioactive waste, and the container is composed of a plurality of water-cooling pipes; the induction coil is configured to generate an induced current on the radioactive waste in the container to heat the radioactive waste to make it a molten body; the cover is configured to seal the container; the temperature measuring device is used to measure the temperature of the molten body in the container; wherein, when measuring the temperature of the molten body, the temperature measuring device is tilted in a direction away from the inner wall of the container.

[0007] The device suitable for radioactive waste treatment provided in the embodiment of the present application arranges the temperature measuring device to be inclined in a direction away from the inner wall of the container when measuring the temperature of the molten body, so that the temperature measuring device can be free from the influence of the cooling water in the water-cooling tube constituting the container, which is beneficial to improving the accuracy of the temperature measurement results of the temperature measuring device. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Other objects and advantages of the present application will become apparent from the following description of the embodiments of the present application with reference to the accompanying drawings, and will help to provide a comprehensive understanding of the present application.

[0009] Figure 1 It is a schematic diagram of the structure of the device suitable for radioactive waste treatment provided in an embodiment of the present application when the temperature measuring device is set tilted or vertically.

[0010] Figure 2 It is a schematic structural diagram of the assembled temperature measuring device and cover of the device suitable for radioactive waste treatment provided in the embodiment of the present application.

[0011] Description of reference numerals:

[0012] 100. Devices suitable for the treatment of radioactive waste;

[0013] 10. accommodating member; 20. induction coil; 30. cover member; 40. temperature measuring device; 41. temperature measuring member; 42. mounting member; 421. mounting portion; 422. connecting portion; 4221. passage; 60. fixing member.

[0014] It should be noted that the drawings are not necessarily drawn to scale, but are merely shown in a schematic manner that does not affect the reader's understanding. DETAILED DESCRIPTION

[0015] Exemplary embodiments of the present application will be described below in conjunction with the accompanying drawings. For the sake of clarity and conciseness, not all features of the actual implementation are described in the specification. However, it should be understood that many implementation-specific decisions must be made in the process of developing any such actual implementation in order to achieve the developer's specific goals, such as meeting those constraints related to the system and business, and these constraints may vary from implementation to implementation. In addition, it should be understood that although the development work may be very complex and time-consuming, it is only a routine task for those skilled in the art who benefit from the content of this application.

[0016] It is also necessary to explain here that, in order to avoid obscuring the present application due to unnecessary details, only the device structure and / or processing steps closely related to the scheme according to the present application are shown in the accompanying drawings, while other details that are not very relevant to the present application are omitted.

[0017] In the related art, a temperature measuring device for measuring the temperature of the melt in a cold crucible is usually arranged vertically close to the inner wall of the cold crucible (the distance between the temperature measuring device and the inner wall of the cold crucible is only 40 mm). However, since the body of the cold crucible is composed of multiple water-cooling tubes, the temperature measuring device arranged vertically close to the inner wall of the cold crucible will be affected by the cooling water in the water-cooling tubes, resulting in inaccurate measured temperature results.

[0018] In view of the above problems, the embodiments of the present application provide a device suitable for treating radioactive waste. Figure 1 and Figure 2 , Figure 1 is a schematic structural diagram of a device for treating radioactive waste provided in an embodiment of the present application when the temperature measuring device is arranged obliquely or vertically, Figure 2 1 is a schematic diagram of the structure of the temperature measuring device and the cover of the device for radioactive waste treatment provided by the embodiment of the present application after being assembled. The device 100 for radioactive waste treatment provided by the embodiment of the present application includes a container 10, an induction coil 20, a cover 30 and a temperature measuring device 40. The container 10 is used to contain radioactive waste, and the container 10 is composed of a plurality of water-cooling pipes; the induction coil 20 is configured to generate an induced current on the radioactive waste in the container 10 to heat the radioactive waste to make it a molten body; the cover 30 is configured to seal the container 10; the temperature measuring device 40 is used to measure the temperature of the molten body in the container 10; wherein, when measuring the temperature of the molten body, the temperature measuring device 40 is tilted in a direction away from the inner wall of the container 10.

[0019] The device 100 suitable for radioactive waste treatment provided in the embodiment of the present application arranges the temperature measuring device 40 to be inclined in a direction away from the inner wall of the container 10 when measuring the temperature of the molten body, so that the temperature measuring device 40 can be free from the influence of the cooling water in the water-cooling tube constituting the container 10, which is beneficial to improving the accuracy of the temperature measurement result of the temperature measuring device 40.

[0020] In some embodiments, the device 100 suitable for radioactive waste treatment provided by the embodiments of the present application may be a cold crucible, and the container 10 may be a body of the cold crucible.

[0021] See also Figure 2 In some embodiments, the temperature measuring device 40 may include a temperature measuring member 41 and a mounting member 42. The temperature measuring member 41 is used to measure the temperature of the melt; the mounting member 42 is connected to the temperature measuring member 41 and is used to mount the temperature measuring member 41 to the cover member 30; wherein, when measuring the temperature of the melt, the temperature measuring member 41 is tilted in a direction away from the inner wall of the container 10.

[0022] In some embodiments, the mounting member 42 is fixedly connected to the temperature measuring member 41 , for example, the mounting member 42 is welded to the temperature measuring member 41 .

[0023] See also Figure 2In some embodiments, the device 100 for treating radioactive waste may further include a fixing member 60 for fixing the mounting member 42 and the cover member 30 so that the cover member 30 is firmly connected to the mounting member 42. In some embodiments, the mounting member 42 is matched with the fixing member 60 in a contoured manner to facilitate fixing the mounting member 42. In some embodiments, the fixing member 60 may be rotated to fix the mounting member 42 and the cover member 30 or release the fixing of the mounting member 42 and the cover member 30.

[0024] See also Figure 1 and Figure 2 In some embodiments, when the temperature measuring member 41 is mounted on the cover 30, the temperature measuring member 41 is arranged vertically; after the temperature measuring member 41 is mounted on the cover 30, the temperature measuring member 41 is arranged obliquely in a direction away from the inner wall of the container 10; in the process of melting the radioactive waste to obtain a molten body, the temperature measuring member 41 is changed from being arranged obliquely in a direction away from the inner wall of the container 10 to being arranged vertically. Since starting materials need to be placed in the container 10 before the radioactive waste is melted, the embodiments of the present application can avoid interference with the starting materials by arranging the temperature measuring member 41 to remain in a vertical arrangement during the process of melting the radioactive waste to obtain a molten body; at the same time, the temperature measuring member 41 is arranged to be arranged vertically when mounted on the cover 30, which facilitates the installation of the temperature measuring member 41.

[0025] In some embodiments, the mounting member 42 is configured to enable the temperature measuring member 41 to change from being tilted away from the inner wall of the container 10 to being vertically configured by its own gravity. In such an embodiment, by enabling the temperature measuring member 41 to change from being tilted away from the inner wall of the container 10 to being vertically configured by its own gravity, no additional operation is required, which is conducive to simplifying the use of the temperature measuring device 40.

[0026] In some embodiments, the mounting member 42 is configured to be able to move relative to the cover member 30, so that the temperature measuring member 41 is changed from being tilted away from the inner wall of the container 10 to being vertically arranged. In such an embodiment, the temperature measuring member 41 can be switched between the tilted arrangement and the vertical arrangement through the relative movement of the mounting member 42 and the cover member 30, thereby facilitating the temperature measuring member 41 to measure the temperature of the melt and facilitating the installation of the temperature measuring member 41.

[0027] In some embodiments, after the temperature measuring component 41 is installed to the cover 30, the fixing component 60 can be rotated to fix the mounting component 42 and the cover 30; during the process of melting the radioactive waste to obtain a molten body, the fixing component 60 can be rotated again to release the fixation between the mounting component 42 and the cover 30, so that the mounting component 42 can move relative to the cover 30.

[0028] See also Figure 2In some embodiments, the mounting member 42 includes a mounting portion 421 and a connecting portion 422, the mounting portion 421 and the connecting portion 422 are integrally formed; the connecting portion 422 forms a channel 4221, the temperature measuring member 41 is fixedly connected to the inner side of the channel 4221 and extends to the outside of the channel 4221, the mounting portion 421 is formed on the radial outer side of the connecting portion 422, and the mounting portion 421 can contact the cover 30 to install the temperature measuring member 41 to the cover 30; wherein the connecting portion 422 and the mounting portion 421 are configured to move relative to the cover 30. In such an embodiment, the relative movement of the mounting member 42 and the cover 30 can be achieved through the relative movement of the connecting portion 422 and the mounting portion 421 and the cover 30.

[0029] In some embodiments, the cover 30 is formed with a sliding groove, and the connecting portion 422 and the mounting portion 421 can enter the sliding groove, and the connecting portion 422 and the mounting portion 421 can slide in the sliding groove, so that the connecting portion 422 and the mounting portion 421 can move relative to the cover 30. In such an embodiment, the connecting portion 422 and the mounting portion 421 can slide in the sliding groove, so that the connecting portion 422 and the mounting portion 421 can move relative to the cover 30, thereby enabling the mounting member 42 to move relative to the cover 30.

[0030] In some embodiments, the temperature measuring part 41 may include a temperature measuring connection part and a temperature measuring part. The temperature measuring connection part is connected to the mounting part 42. When the temperature measuring part 41 measures the temperature of the melt, the temperature measuring connection part contacts the melt; the temperature measuring part is fixedly connected to the inner side of the temperature measuring connection part and extends to the outside of the temperature measuring connection part so as to measure the temperature of the melt. In such an embodiment, by arranging the temperature measuring connection part outside the temperature measuring part, it is helpful to protect the temperature measuring part and prevent the temperature measuring part from being melted or corroded by the melt; at the same time, the temperature measuring part extends to the outside of the temperature measuring connection part, which can prevent the temperature measuring part from being affected by the cooling water in the water-cooling tube constituting the container 10, which is helpful to ensure the accuracy of the temperature measurement result.

[0031] In some embodiments, the temperature measuring portion may be a thermocouple, and the length of the temperature measuring portion extending to the outside of the temperature measuring connection portion may be 100 mm.

[0032] In some embodiments, the temperature measuring connection part includes an inner shell and an outer shell, the outer shell is in contact with the melt, the inner shell is arranged on the inner side of the outer shell, and the temperature measuring part is fixedly connected to the inner side of the inner shell; a cooling flow path is formed between the outer shell and the inner shell, and the coolant from the outside of the temperature measuring device 40 can enter the cooling flow path to cool the temperature measuring part. In such an embodiment, the temperature measuring part can be cooled by the external coolant entering the cooling flow path, which can prevent the temperature measuring part from being melted or corroded by the melt.

[0033] In some embodiments, the temperature measuring member 41 and the mounting member 42 may be an integrated structure, and the temperature measuring member 41 and the mounting member 42 may be hoisted or removed as a whole by a hoisting device. In such an embodiment, the above arrangement facilitates the hoisting device to hoist or remove the temperature measuring device 40, and facilitates the installation of the temperature measuring device 40 to the cover 30.

[0034] In some embodiments, the lifting equipment may be a crane and a manipulator.

[0035] Regarding the embodiments of the present application, it should also be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other to obtain new embodiments.

[0036] The above are only specific implementation methods of the present application, but the protection scope of the present application is not limited thereto. The protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A device suitable for treating radioactive waste, characterized in that: include: A container for containing radioactive waste, wherein the container is composed of a plurality of water-cooling pipes; an induction coil configured to generate an induced current on the radioactive waste in the container to heat the radioactive waste to form a molten body; A cover member, configured to close the container; a temperature measuring device, used for measuring the temperature of the molten body in the container; Wherein, when measuring the temperature of the melt, the temperature measuring device is arranged to be inclined in a direction away from the inner wall of the container.

2. The device according to claim 1, characterized in that The temperature measuring device comprises: A temperature measuring component, used for measuring the temperature of the molten body; a mounting member connected to the temperature measuring member and used for mounting the temperature measuring member to the cover member; Wherein, when measuring the temperature of the melt, the temperature measuring component is arranged to be inclined in a direction away from the inner wall of the container.

3. The device according to claim 2, characterized in that When the temperature measuring component is installed on the cover, the temperature measuring component is vertically arranged; after the temperature measuring component is installed on the cover, the temperature measuring component is tilted in a direction away from the inner wall of the container; in the process of melting the radioactive waste to obtain the molten body, the temperature measuring component changes from being tilted in a direction away from the inner wall of the container to being vertically arranged.

4. The device according to claim 3, characterized in that The mounting member is arranged so that the temperature measuring member can change from being inclined away from the inner wall of the container to being vertically arranged due to its own gravity.

5. The device according to claim 4, characterized in that The mounting member is arranged to be able to move relative to the cover member, so that the temperature measuring member is changed from being arranged in an inclined direction away from the inner wall of the container to being arranged vertically.

6. The device according to claim 5, characterized in that The mounting member comprises a mounting portion and a connecting portion, wherein the mounting portion and the connecting portion are integrally formed; The connecting portion forms a channel, the temperature measuring element is fixedly connected to the inner side of the channel and extends to the outside of the channel, the mounting portion is formed on the radial outer side of the connecting portion, and the mounting portion can contact the cover member to mount the temperature measuring element to the cover member; Wherein, the connecting portion and the mounting portion are arranged to move relative to the cover.

7. The device according to claim 6, characterized in that The cover is formed with a sliding groove, the connecting portion and the mounting portion can enter the sliding groove, and the connecting portion and the mounting portion can slide in the sliding groove, so that the connecting portion and the mounting portion can move relative to the cover.

8. The device according to claim 2, characterized in that The temperature measuring element comprises: a temperature measuring connection part connected to the mounting part, and when the temperature measuring part measures the temperature of the melt, the temperature measuring connection part contacts the melt; The temperature measuring portion is fixedly connected to the inner side of the connecting portion and extends to the outside of the temperature measuring connecting portion so as to measure the temperature of the melt.

9. The device according to claim 8, characterized in that The temperature measuring connection part comprises an inner shell and an outer shell, the outer shell is in contact with the melt, the inner shell is arranged on the inner side of the outer shell, and the temperature measuring part is fixedly connected to the inner side of the inner shell; A cooling flow path is formed between the outer shell and the inner shell, and a coolant from outside the temperature measuring device can enter the cooling flow path to cool the temperature measuring part.

10. The device according to claim 2, characterized in that The temperature measuring component and the mounting component are an integrated structure, and the temperature measuring component and the mounting component can be hoisted or removed as a whole by hoisting equipment.

Images